Free 3D Site Plan Generator

Turn any address into a 3D site plan — free, in under a minute

Type a location or draw a boundary. SiteGrab pulls real building footprints, heights, and terrain, and hands you a ready-to-use Rhino model. No QGIS, no manual tracing, no site visit required to get started.

Generate your site plan free → No account required to try it
A SiteGrab site model open in Rhino: real building massing, terrain surface and the layer panel — the kind of 3D site plan generated from any address.

A combined SiteGrab model open in Rhino — massing, terrain and layers.

What you actually get

Most "free site plan" tools online give you a flat screenshot or a rough massing block. SiteGrab generates a real, usable model built from actual data for the location you enter:

1

Real building geometry, not guesses

Footprints and heights are pulled from open mapping data, with real LiDAR-derived heights where available, so neighbouring buildings sit at their actual scale.

2

Aligned and projected correctly

SiteGrab auto-detects the correct UTM projection for your location, so your model lands true-to-scale and correctly oriented — no manual georeferencing.

3

Sun path included

Every site plan can include a sun path diagram for the exact coordinates you entered — hourly sun positions and shadow casting, generated alongside your model, not as a separate manual step.

4

Export straight into your workflow

Download as a 3D Rhino .3dm file, a layered AutoCAD .dxf, or both combined — ready to drop into your existing project.

Free 3D site plan vs. the manual way

If you've built a site model in QGIS before, you know the process: source data, clean geometry, project coordinates, export, import into your 3D software, fix scale issues. SiteGrab replaces that entire chain.

With SiteGrab

  • Type an address or draw a box
  • Model generates in seconds
  • Correct projection, automatically
  • Sun path included by default
  • Export directly to Rhino or CAD

Manual QGIS workflow

  • Source and clean OSM/GIS data
  • Set projection manually
  • Export and reimport into 3D software
  • Build sun path separately
  • Can take hours per site

Who this is for

Architecture students who need a fast, accurate base model for studio projects without losing a day to data prep. Practising architects who want a reliable starting point for early-stage site analysis before investing time in a bespoke model. If you've ever needed a site plan and didn't have a week to build one, this is built for that moment.

Frequently asked

Is it actually free?

Yes — you can generate site plans on the free tier. A paid plan exists for higher usage and additional features, but you don't need it to try SiteGrab or produce a working model.

What file formats do I get?

3D Rhino .3dm, 2D AutoCAD .dxf with organised layers, or a combined aligned model with both.

Does it work anywhere in the world?

Yes, anywhere with available open mapping data. Building height accuracy is highest in regions with LiDAR coverage, with type-based estimation used elsewhere.

Do I need QGIS or GIS experience?

No. SiteGrab is built specifically so you don't need GIS software or experience to get a usable, correctly scaled site model.